Finding the Fourth Proportional to 22,164.04, 30,586.98 and 13,212.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,164.04 : 30,586.98 = 13,212.28 : x
2. Step 2: Convert to fraction form
   22,164.04/30,586.98 = 13,212.28/x
3. Step 3: Cross multiply
   22,164.04x = 30,586.98 × 13,212.28
4. Step 4: Simplify right side
   22,164.04x = 404,123,744.11
5. Step 5: Solve for x
   x = 404,123,744.11/22,164.04
6. Step 6: Final answer
   x = 18,233.31